From 027b6ca02192f381a5a91237ba8a8cf625dc6f6a Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 23 Dec 2008 16:04:13 -0500
Subject: [PATCH] NFSv4: Fix an infinite loop in the NFS state recovery code

Marten Gajda <marten.gajda@fernuni-hagen.de> states:

I tracked the problem down to the function nfs4_do_open_expired.
Within this function _nfs4_open_expired is called and may return
-NFS4ERR_DELAY. When a further call to _nfs4_open_expired is
executed and does not return -NFS4ERR_DELAY the "exception.retry"
variable is not reset to 0, causing the loop to iterate again
(and as long as err != -NFS4ERR_DELAY, probably forever)

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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